mb+ Ignitio Coil'Autotransfo'[Pack'Module'], Diagnostic'Ignitio Coil'Test[Enlever Fuse:Relay'Fuel Pp']

Diagnostic test
Ignition coil test (only Bear tester)
only for single-, two-circuit ignition system
Perform ignition coil test only at idle speed.
In addition, the ignition coil should be tested on the oscilloscope image in
the single image display, see pages 47 /7 and 47 /8.
Program selection "Engine electrics ignition coil test"
Test and adjustment data, see Register A.
Diagnostic test
Ignition coil test (only Bear tester)
only for single-, two-circuit ignition system
Oil temperature
Engine speed
Battery voltage
Voltage terminal 15
Voltage terminal 1
Primary resistance
Terminal 15 line resistance
max. primary current
max. ignition voltage
80 °C
766/min
13.8 V
13.3 V
1.5 V
0.44
ohm
0.01
ohm
7.5 A
28 kV
Ignition
Voltage terminals 15 and 1
Dwell angle and
ignition coil
Oscilloscope images
Combustion time/cylinder
Secondary voltage
Set/actual value comparison
of test and adjustment data
(Register A)
Test programs
Engine Volume 2
Actual values within tolerance
yes
no
Fault in order
yes
End of test
no
Fault-related diagnosis
paths
(Register D)
Note
The figures are examples of a 4-cylinder engine and are not intended for direct
comparison.
© Daimler AG, 4/17/11, G/01/11, dh0c00pm10043x, C - Diagnostic Testers 43 - Diagnostic Test - Ignition Coil Test (only Bear tester) All Engines
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